Display device



Nov. .25, 1941. L. w. SE. Em 2,263,685

DISPLAY DEVICE.

Filed Dec. .4, 1959 w fzz/eim; fwb'szaaz mm/Z 0X60 Patented Nov. 25,1941 Lewis W. SeiLiChicago, andtwald emar Olson, Brookfiel d, Ill.,- .asigno rs to Reynolds-Electric nois Companyighicaglq, 111., a corporationoflllilppnammeaba 4, 1939, Serial No. 302,486 5 claims. (01. 60 -62)Tlie iinverition relates to improvements L display devices especiallyadaptd for use in co'r'ijunction with fans; the primary ob'ject of theinvention being the provision of an improved construction ofthecharacter indicatedwhich is capable of economical production and highlyelfig cientinuse. Q

"Another object of the invention isthe provision of an improvedconstruction of the character indicated, so constructed and arranged asto operate at substantially constant speed, notwithstanding'variationsin the speed of the operating 'Other objects will appear hereinafter.

The inventionconsists of the combinations and arrangements of partshereinafter described and claimed I 'The invention willbe bestunderstood by ref erence to the accompanying drawing forming a part ofthis specification and in which:

Fig. 1 is a top plan view ofa display device embodying the invention; iJ

Fig. 2 a side view thereof;

Fig. 3 an enlarged section taken on line 33 of Fig.1; 1 4

Fig. 4Ian enlarged sectiontaken substantially on line 4-4 of Fig. 2;

Fig. 5 an enlarged section taken substantially on line 5--5 of Fig. 2;

Fig. 6 a perspective view illustrating a modified form of constructionembodying the invention.

The embodiment of the invention illustrated in Figs. 1, 2, 3, 4 and 5,comprises a suitable post or pedestal l having a supporting fork I l atits top, adjustably supporting a fan motor l2, which in turn supports afan l3 as indicated. The guard l4 of usual form is arranged around thefan l3 and is provided at its top with a center plate l supporting avertical stud l6 having a ball-like head H on which a ball-bearing I8 ismounted to provide for free rocking movement in any direction androtating thereon. A center plate of a display frame is secured to theball-bearing I8, as best shown in Fig. 3, so as to be free to rock androtate freely on the axis of the ball-bearing. Radiating frame bars 2|are secured as shown to the center plate 20 and project outwardly andcurve downwardly over and around the fan guard M as shown. An annularchannel member 22 is secured as indicated to the lower ends of the arms2| and depending arms 23 are secured to the channel member 22. Tensionsprings 24 are secured as shown to the lower ends of the arms 23 andyieldingly support lugs 25 on another annular channel member 26 asindicated. By this substantially arrangement a 'dis'playframe isprovided which isfree' to rotate horizontally about the fan l3 and isalso free to adjust itself into level position in case the supportingpost I0 is slightly out of vertical'position'. When desired,the channelmember '26 may be'moved downwardly against the resistance of 'thesprings24 to permit of the insertion of advertising cards or other displaymaterial in the channels of the members 22 and 26. When released thechannel member 26 will be drawn upwardly by the springs 24 to clamp theinserted matter securely between said channels,

as will be readily understood. 7

A supporting bracket 21 is arranged as shown on the centerplate 20 ofthe'display frame and anbp'erating arm 28 is provided at its inner endwith a coil 29 constituting a pivot sleeve," which, in turn,is pivotallymounted on a stud screw 30 projecting laterallyfrom the bracket 21. Atits inner end the operating arm 28 is provided with an angular stopfinger 3| arranged to contact with the plate 20 to limit the upwardswing of the arm 28, as will be readily understood. A propulsion vane 32is provided with a spring clamping bracket 33, the sides of which areperforated, as indicated, to permit the free passage of the rod 28 andwhereby the vane 32 is rendered longitudinally and angularly adjustableon the rod 28, as will be readily understood. By this arrangement whenthe fan I3 is operated by the motor l2 to project an upward blast of airthrough the display frame and against the vane 32, a propulsive effectwill be exerted on the vane 32 if the said vane is adjusted to a properangle with reference to the direction of said blast as indicated in Fig.2. The upward blast from the fan will also exert an upward thrust on thearm 28, tending to swing the same upwardly, depending upon the intensityof the blast and the angle at which the vane 32 is positioned.Obviously, as the arm 28 thus swings upwardly it alters the angularrelation of the vane 32 to the blast and also moves said vane closer tothe vertical rotation axis of the display frame so as to lessen thepropulsive effect on the vane due to the increase in the intensity ofthe air blast. Obviously, by properly adjusting the vane 32 on the rod28 the effect due to any increase in the intensity of the blast may besubstantially nullified so that the rotation of the display frame willbe held automatically substantially constant notwithstanding variationsin speed of the fan 30. Thus a variable speed fan may be employedwithout materially varying the speed of rotation of the display frame.In this way an attractive and effective rotate on a vertical axis; a fanmounted on said support and arranged to project a blast of air upwardlythrough said frame; a propulsion vane so mounted on said frame as tocause rotation thereof by said blast; and means also operable by saidblast for automatically regulating the effect of said blast to maintainthe same substantially constant.

2. A device of the class described comprising a support; a frame mountedon said support to rotate on a vertical axis; a fan mounted on said asthat already disclosed. By this arrangement the air blast from the fanl3 will impart a sub stantially constant propulsive effect-or thrust tothe vane 34, tending to rotate the display frame support and arranged toproject a blast of air arm mounted on said frame to swing upwardly;

in one direction. At the same time a propulsive effect will be impartedto the other vane 36,

which will either assist or oppose the effect of vane 34. When the vane36 is hanging at a downward angle, as indicated by dotted lines in Fig.6, the propulsive effect thereof will be such as to assist that of thevane 34. However, when the intensity of the air blast is such as toswing the vane 35 upwardly into the full line position indicated in Fig.6, the effect of the vane 36 will be to resist that of the vane 34, sothat the re sultant total propulsive effect of the air blast will remainsubstantially constant. By this arrangement and by radially adjustingthe vanes 34 and 36 on their supporting bars, the speed of rota,

tion of the display frame may be again rendered substantially constant,notwithstanding variations of the speed of the fan and the intensity ofthe air blast.

While we have illustrated and described the preferred forms ofconstruction for carrying the invention into effect, these are capableof variation and modification without departing from the spirit of theinvention. We therefore do not wish to be limited to th precise detailsdisclosed,

but desire to avail ourselves of such variations and modifications asfall within the scope. of the appended claims.

We claim:

l. A device of the class described comprising a support; a frame mountedon said support to and a propulsion vane on said arm.

3. A device of the class described comprising a support; a frame mountedon said support to rotate on a vertical axis; a fan mounted on saidsupport and arranged to project a blast of air upwardly through saidframe; an operating arm mountedon said frame to swing upwardly; and apropulsion vane angularly and longitudinally adjustable on said arm.

4. A device of the class described comprising a support; a frame mountedon said support to rotate on a vertical axis; a fan mounted on saidsupport and arranged to project a blast of air upwardly through saidframe; a propulsion vane mounted on said frame at a definite angle tothe direction of said blast; and another vane hinged to said frame to beswung automatically byincrease in intensity of said blast to diminishthe propulsive effect of said first mentioned vane.

5. A device of the class described comprising a support; a frame mountedon said support to rotateon a vertical axis; a fan mounted on saidsupport and arranged to project a blast of air upwardly through saidframe; a radially adjustable propulsion vane mounted on said frame at adefinite angle to the direction of said blast; and another radiallyadjustable vane hinged to said frame to be swung automatically byincrease in intensity of said blast to diminish the propulsive effect ofsaid first mentioned vane.

LEWIS W. SEIL. WALDEMAR. N. OLSON.

